How To Install Modified Bitumen Roll Roofing

After attaching the felt to the roof use a primer to prepare the roofing.

How to install modified bitumen roll roofing.

Get a sheet of bitumen roofing and roll it out allowing an extension beyond the perimeter of the roof. Peel and stick modified bitumen roofing installation is more suitable for a diy job as there is no danger of fire and no fumes to contend with. Modified bitumen roofing may have a granular surface as shown here or it may be smooth. Make sure the roofing is flat and free from creases and bubbles.

How to install peel and stick modified bitumen roofing. Modified bitumen is approved for flat roofs with minimal slope but roll roofing is not viable below a 2 12 pitch two inches of rise for each twelve inches of horizontal run with exposed nails or a maybe little lower with concealed nail installation. The beginning of a peel and stick installation starts out the same as the torch down. Self adhering modified bitumen roll roofing is designed for flat roofs with a pitch or 4 12 or less typically found over shed type garages and second floor porches.

Roll roofing and modified bitumen are both suitable for low slope roofs. As with other types of modified bitumen materials the cost may be a bit higher than traditional asphalt roll roofing but the additional price is. These steps show a torch down method which looks a bit scary but actually is not too difficult. Step 3 prime the roof.

Remove the adhesive film.